Dicas Reparação
Modelo - Chassis SL2700
Pesquisa: SL2700 Enviar Dica Resolvida
Resultados 18
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SL2700 | INTERMITTENT HUM ON LEFT CHANNEL: RESOLDER BPF811/812 AF1 BD | Intermittent hum recorded in left audio channel. Playback oftape recorded on another machine played fine. | ||
| Sony | SL2700 | UNIT POWERS ON AND OFF ONLY | Unit would power on and off only. No other functions work. | ||
| Sony | SL2700 | UNIT WON'T PLAY | Unit has no capstan rotation. Pinch solenoid is not activatedand reel motor free run and drum runs normal. Changed IC-602 and 301 onSS-14 board and its still the same. If I manually rotate capstan forchecking FG, I get about 1/4 volts p-p FG signal (s | ||
| Sony | SL2700 | PART NUMBER FOR CASSETTE IN SWITCHES | On page 169 of the service manual, there is no partnumber for the CASSETTE IN micro switches (next to items 370 and 371). | ||
| Sony | SL2700 | DRUM MOTOR NOT RUNNING | Conductive glue on hall device. As it got older and harder,it was not allowing the hall device to conduct. | ||
| Sony | SL2700 | REPLACEMENT BRAKE SOLENOID DOES NOT WORK | Servicer stated that the new brake solenoid does not work wheninstalled. -HQ COMMENTS: The plunger for the brake solenoid (included) must be re-placed also when replacing solenoid because it is different from the oldplunger. | ||
| Sony | SL2700 | BRAKE SOLENOID WOULD NOT ENGAGE | Brake solenoid would not engage, brake solenoid opened.Found problem to be a leaky switch (Q332) causing forward bias on Q309. | ||
| Sony | SL2700 | UNIT WILL NOT POWER OFF | Unit would not power off. After much troubleshooting foundIC8, Pin 4, always low. All inputs normal. | ||
| Sony | SL2700 | INTERMITTENT MOTORBOATING | Motorboating in left channel after about two hours of play.Disappeared after about few sec by opening the unit. Used hair dryer.Did not help. By covering unit with towels the symptom occurred again.Finally found a bad 0.01uF cap in CP804 on AF-1 bd (be | ||
| Sony | SL2700 | CROSS TALK | This unit had bad cross talk on both channels. The outputsfrom the band pass filters was not clean. BPF-801/802/901/902 wereall bad. | ||
| Sony | SL2700 | NEW AS-7W BOARDS | In this new board IC303, IC107 and IC204 are uPD4066BC typeand in old board they are TC4066BP type. Are they interchangeable? Thisunit with the new board you can hear the E-E audio on the background ofPB audio. -HQ COMMENTS: uPD4066BC P/N 8-759-140-66 | ||
| Sony | SL2700 | SHUTDOWN FROM ANY MODE | After inserting tape, pressing any mode switch unit wouldshutdown in approx. 10 to 20 seconds. Take-up reel would turn slowly ornot at all. Pinch solenoid operation may also be erratic. | ||
| Sony | SL2700 | DEAD | Push power switch on, power switch light does not light, drumis turning, TV/VCR switch does not work, and will not take a cassette. | ||
| Sony | SL2700 | NO FUNCTION OF PB OR REC. NO OPERATION OF MOTOR CIRCUITS | Replaced fuse PS-605. -HQ COMMENTS: The SS-14 board contains five fuses (3-glass tube type,2-semiconductor type). After checking the supply voltages at theconnector pins, it is a good idea to check all fuses. | ||
| Sony | SL2700 | CAPSTAN RUNNING TOO FAST | The capstan was running too fast on this unit. All otherfunctions were OK. We found the FG1 input to the servo IC to be very low.The problem was caused by incorrect bias at the FG amp/IC306 P9, we foundC340 to be leaky. -HQ COMMENTS: We received info. |